My first two are 2.5 years apart (just how we "planned") and if we get pregnant again, my second and the third will be about 4 years apart (just like we want).. when my second was 2, I really wanted to get pregnant. I thought about it for a long time and decided for me and my present kids that it would be best to wait a year. I was/am lucky, hubby doesn't care when I get pregnant, but then he also isn't home much. Basically, yes, I know how it feels to want to get pregnant and everytime you see a baby or watch A Baby Story you are probably wanting it even more, but it's also so important for both you and your husband to be on the same page. Enjoy your baby you have, don't stress about not having them close in age. I know many are a fan of that, and I can see both sides but just think, the longer you wait, the more time you have with your daughter (and it only gets more fun) then the older she is, the easier it will be on you to take care of a new baby and the more you can give to number two. At least, that is my way of thinking. I wanted to experience each baby like it was my first, have just as much time with each as I did my first (impossible, but I can try). We are currently trying for number 3 and I couldn't be more excited to have two "older" kids around to be able to welcome the new baby when that happens.
I don't know if I have any advice on how to "get over it" as you asked, I'd say I've spent the last year wanting it but knowing that waiting a year for us would be best. I've really focused on being the best Mommy to my kids, knowing that in the near future I'd get pregnant again. I guess that seems too simple, but try to just focus on the present, you, your husband and your baby, when the timing is right for both you and your husband, it will happen.
Best wishes to you,
M.